6 Best Boat Bilge Pumps of 2021 Reviews & Buying Guide

Assume you’re on a fishing trip with your mates. All seems to be going fine, before you discover the water is slowly infiltrating your cruise. Too much rain or a break in the hull. Whatever the cause, you’ll want to bail at first; that is, expel the water with the strength of your muscles. When confronted with the force of water penetration, you can soon know that you are helpless. Do you have any concerns about the situation? If you have a bilge pump, no way!

Any bottom of a boat, whether small or massive, is referred to as a keep. The water in the hold will then be sucked out by a pump and transferred outside, into the sea, the river, or anywhere you are on the water. The bilge pump is an important safety accessory for any decent sailor. It can be used in an emergency or to scoop water that has collected in the bottom of your boat.

What Are The Best Boat Bilge Pumps?

1. 12v Seaflo Automatic Bilge Pump 750 GPH

If you want a decent bilge pump without wasting a lot of money on it, you’ve come to the right spot. The Seaflo 47 LPM bilge pump has some nice features, but it’s still very cheap and accessible to most people. Is it true that the water level has risen to 50mm? The pump starts automatically and shuts off when the water level falls below 2 centimeters.

Thanks to its 12 Volts, the system runs without the need for a button. Its ABS construction makes it waterproof and long-lasting. It will therefore drink water that has been heated to a high of 43 degrees. It makes no difference whether the water is fresh or salty to this device, which knows how to be helpful in the event of rising water.

The engine is thin, but it packs a punch. The bilge pump base can be easily disassembled for washing. The pump automatically discharges the liquid to the outside until the aspirated water level exceeds the threshold. A single box includes both the float and the bilge pump.

2. Focket Kayak Bilge Pump

Best manual pump for light craft

This manual bilge pump is designed to remove water that has collected at the bottom of light vessels, such as kayaks. It’s really easy to use. Simply pump before the water emerges from the tiny dedicated nozzle. Remember to transform this water outlet on the outside of the boat so that your efforts are not wasted!

It is convenient and light, and it can be conveniently packed in bags. It has an ergonomic handle that makes it easy to use. By helping you to boost your muscles, this manual bilge pump will save you from sinking. This is a useful item to have with you on your river trips.

3. SAILFLO Automatic Submersible Boat Bilge Water Pump

Who said you need to pay a lot of money to get an automatic bilge pump? This Sailflo 750 GHP pump has positive features, such as being activated when the water level in the bilge exceeds 2 cm. The pump’s five impellers cause it to drain at a rate of 40 liters per minute. It comes with a built-in float turn, so you won’t need to buy one separately.

It is impact, rust, and corrosion resistant due to its plastic and stainless steel nature. It is fully submersible and can remain in the water for an extended period of time while performing its function.

4. Rule LoPro Series Bilge Pumps

With this excellent Rule LP900S bilge pump, we take a step upmarket. A water level detector is included in this device. It is then immediately turned on. This pump can be set to test every two and a half minutes. When you own a yacht but don’t live by it, this is a bonus. This encourages you to keep an eye on your property at all times, even though you are far away.

The bilge pump is simple to mount, thanks to its ability to spin 180 degrees. As a result, depending on the available space on the boat, it can be installed horizontally or vertically without compromising its running. Will you have a finite period of time to leave? You would have the answer if you outfit yourself with this kit, as it only needs 5.7 centimeters of height to successfully accomplish its mission.

It has a capacity of 900 gallons per hour, which is 3,406 liters. It can also be activated at two different water temperatures. At the maximum level, where the water level reaches 10.2 centimeters, or at the low level, where the water level approaches 2.5 centimeters. Its service is also very silent.

5. Attwood WaterBuster Portable Pump

The handle on this Attwood bilge pump makes it easy to carry. In the event of injury, this makes for a strong grip. It’s just a matter of submerging the pump in the bath and easily removing the water. Flush the water from your boat with ease. However, you can use it to clean a clogged aquarium, sink, or swimming pool at home.

A compact and functional device that can be found in many homes without the need for a cruise. With a weight of just over a kilo, it can be taken even on holiday to cope with any circumstance. The scooping unit is powered by three LR20 batteries. It does not need electricity and can be taken everywhere at a low cost.

It has the capacity to scoop up to a meter of water. This tiny computer is unfazed by 900 liters per hour. A 1 meter hose will be included with the pump. The male adapter that comes with it can also be used to attach it to your garden hose.

6. Johnson – 32503 Cartridge Bilge Pump 500 GPH

This submersible electric bilge pump is fully submersible. The engine has a stainless steel shaft, known to be corrosion and rust free. While pumping, the water cools the engine to prevent overheating . The pump is equipped with a straight connection and another elbow to best suit your installation.

Note that this bilge pump is manual, but you can add a float switch to it to trigger automatically. Its non-return valve is removable. This pump comes in different models, from 500 GPH to 1250 GPH (gallons per hour) with a pumping rate of 40 L / minute to 73 L depending on the model chosen. Don’t hesitate to choose the pump that best suits your boat and your needs.

Buying Guide For Boat Bilge Pumps

3 types of bilge pumps

Manual pump

The manual bilge pump, as the name indicates, does not involve any form of attachment. Depending on the model, they may be controlled manually or with a lever. Any models are powered by batteries. In this case, if the impact has affected the power on board, this may be a good solution. They are simple to use and can be used in a domestic environment, making them flexible.

Since they are typically light, it is critical to be present and keep them when conducting the operation. They can be placed on the deck for immediate use or tied to a cabin bulkhead. It is possible to bail up to 100 liters per minute with a manual bilge pump, but they can reach their limit if the water level increases rapidly. In addition to an electric model that is more effective, we consider using a manual pump to solve an electrical problem.

Electric submersible pump

The submersible bilge pump functions even when submerged, which is not true of all of them. When purchasing a commodity, be vigilant. Some systems are not waterproof enough to be submerged for an extended period of time. Yes, these. They are simple to start: if water is present, press the ON button; once the water has been drained, press the STOP button. It is better to position them in difficult-to-reach locations where water appears to pool. Their motors are available in 12 and 24 volt versions. They are powered by batteries or can be attached to your marine battery. Up to 160 liters of water per minute can be sucked and spat by submersible pumps. They can be selected when you are physically close to your boat and can act rapidly.

Automatic electric pump

When the contactor feels the presence of water, the automatic electric bilge pump triggers. There is no harmful substance in the contactor, such as mercury. Since the engines are almost all made of stainless steel, there is no risk of corrosion. When the water level exceeds a certain point, The pump continues to run. It is not important to be there. If you believe your boat is about to be filled by water, you can verify the device’s operational state by manually monitoring it or even manually activating it. If fitted with a contactor, a submersible pump may perform the same function. The transition is possible because they are both fully watertight.

Buying Guide For Boat Bilge Pumps

What to look for?

You want to buy a bilge pump, but how do you know which model is right for your boat? Here are few suggestions to help you make your decision.

Depending on the type of boat

If your boat is prone to taking on water, such as racing yachts, an electric submersible or automatic pump is required. Obviously, a power supply is needed for this form of pump.

A manual pump, on the other hand, could be sufficient if you are sailing for pleasure in a small boat, such as a kayak.

The size of the boat

This is a crucial information because it will determine how many drain pumps you will need to add in your yacht. If your bilge is segmented, you’ll need to mount several pumps as well.

Water evacuation capacity

This ability is determined by the size of your ships. The bigger it is, the more a pump capable of extracting as much water as possible should be considered.


The bilge pump is a water-resistant device. It is also important to ensure that the hull, housings, motor protections, and electrical circuit are all well-tightened to ensure that the product lasts for a long time.

Useful accessories

To guarantee that a bilge pump operates correctly, make sure you have all of the following materials:

  • If you want to transform an electric submersible pump into an automatic pump, you’ll need a contactor.
  • A water distribution conduit that allows water to be evacuated.
  • A strainer that serves as a barrier to keep foreign particles out of the pump and causing harm. It comes standard on the majority of pump versions.
  • A non-return valve is used to prevent water from running backwards.
  • A switch that can be mounted on your boat to make it easier to use the engine.

Manual or automatic?

This is, without a doubt, the most critical question to pose. When your boat is docked and you are unable to see it on a daily basis, you would be pleased to learn that the bilge pump has been activated to prevent the worst from happening to your boat.

As a result, mechanical pumps are preferred for pleasure boats, sailboats, and other similar vessels. A manual pump, on the other hand, is more than adequate if you just maneuver in a kayak, rowboat, or smaller boat.

Why equip yourself with a bilge pump?

Do not believe that the bilge pump is only used in an emergency. Too much rain, particularly in the fall and winter, will harm your boat’s health. Stagnant water can be drained into the boat using a bilge pump. A protective device, but also a means of ensuring the longevity of your ships, whatever it is. It is also important that any sailor or boater understands its long-term utility.

It’s also worth noting that a bilge pump, especially manual ones, can be used at home. This kind of pump is inexpensive to buy and acts as a backup in the case of a power outage. If you choose this style of product or a lever model, make sure you have spare batteries. This will take some effort on your part, but it will encourage you to scoop the water if it has not reached a dangerous depth.

The bilge pump is an important piece of equipment on board. A destructive hurricane or a high rate of snow would not save either boater or sailor. A bilge pump would then allow you to quickly drain the water from the boat.

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